LABORATORY REVIEW
DIFFUSION AND OSMOSIS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The water diffuses out of the cell to equalize the solute concentrations.
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The water diffuses into the cell to equalize the solute concentrations.
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The solute (salt) moves inside the cell to equalize the solute concentrations.
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The solute (salt) pushes on the vacuole of the plant cell causing it to collapse.
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Detailed explanation-1: -Suppose a plant is submerged in salt water. As a result, the vacuoles collapse and the leaves wilt. This condition is called plasmolysis.
Detailed explanation-2: -Which explanation do you think best describes what happens to the cells of that plant during plasmolysis? The water diffuses out of the cell to equalize the solute concentrations. Explanation: When the plant is submerged in salt water, the solute (salt) concentration is greater outside the cell membrane than inside.
Detailed explanation-3: -A vacuole is a membrane-bound cell organelle. In animal cells, vacuoles are generally small and help sequester waste products. In plant cells, vacuoles help maintain water balance.
Detailed explanation-4: -Vacuoles, cellular membrane-bound organelles, are the largest compartments of cells, occupying up to 90% of the volume of plant cells. Vacuoles are formed by the biosynthetic and endocytotic pathways.
Detailed explanation-5: -Vacuoles. First, plant cells have a large central vacuole that holds a mixture of water, nutrients, and wastes. A plant cell’s vacuole can make up 90% of the cell’s volume. The large central vacuole essentially stores water.